In order to study the application of lime-fly ash loess in permafrost subgrade engineering, uniaxial compressive test, fast direct shearing test and permeability tests were carried out on lime-fly ash loess under different curing ages and freeze-thaw cycles. Uniaxial compressive strength of lime-fly ash loess increases slowly with the curing ages, and can reach 3.5 Mpa after the curing ages of ...

Loess shoulder-lines are significant structural lines which divide the complicated loess landform into loess interfluves and gully-slope lands. Existing extraction algorithms for shoulder-lines mainly are based on local maximum of terrain features. These algorithms are sensitive to noise for complicated loess surface and the extraction parameters are difficult to be determined, making the extra...

Loess is a main archive of Pleistocene landscapes and environments therefore has an important connection to the preservation interpretation Paleolithic sites. In Europe, anthropogenic sites have been found in loess because past local occupation. At one extreme, are well preserved with minimal disturbance often accompanied by embedded proxies estimate ecological parameters. On other hand, deposi...

Asian mineral dust has been studied extensively for its role in affecting regional-to global-scale climate and deposits, which enable reconstructing atmospheric circulation the past. However, timing origin of deposits remain debated. Numerous loess records have reported across continent with ages varying from Miocene to Eocene linked various mechanisms including global cooling, Tibetan Plateau ...

We examined the survival rate of Cochlodinium polykrikoides after yellow loess addition and conducted culture experiments to investigate the possibility that red tides maybe caused by C. polykrikoides individuals that are precipitated when loess is added. At least 15% of the C. polykrikoides cells that precipitated to the bottom layer either by the addition of loess or no addition survived for ...

The middle-Pleistocene Xiashu loess deposit in the lower reaches of Yangtze River (LRYR), southern China, may yield evidence with significant climatic and environmental significance. However, its provenance remains controversial. In this study, grain size analysis, quartz surface microtextural morphological observations, enabled comparison LRYR those on Loess Plateau northern China. results sho...

As a key global climate and dust archive, the nature of Chinese loess generation, transport deposition remains debated. The lack consensus on dynamics from sources to leeward regions fundamentally limits interpretation preserved past record. Here, we investigate chronostratigraphic variability aeolian deposits in upwind modern Loess Plateau (CLP) attempt understand that potentially affects down...

Usually, soils with mainly fine grain-sized content, as loess, are considered to have low liquefaction potential. Regardless of this, many researchers analyzed and presented much field evidence that silty soil (in particular loess) occurred under certain conditions. In Bulgaria, the first loess river terrace (T1) within Danube River lowland areas is covered by plasticity a thickness 10–12 m. ?h...